Semi-hermetic compressors

Semi-hermetic compressors HG (suction gas-cooled) and HA (air-cooled)

With the semi-hermetic compressors in the model series HG (Hermetic Gas-cooled) we offer state-of-the-art classical suction gas-cooled compressor technology. Quiet running, service friendliness, efficiency and reliability of the very best quality. Naturally suitable for conventional or chlorine-free HFC refrigerants.

All compressors also have other outstanding features which are worth a special mention
- Oil pump lubrication
- Replaceable drive motors
- Bock motor protection MP10 with LED display (8-cylinder with Bock Compressor Management BCM2000)



With the Pluscom series (HG12P to HG34P and HA12P to HA34P) we offer you small-capacity compressors for shops and counter installation with extremely compact dimensions, super-quiet running and absolute top quality.
Special highlight: fully variable speed control with frequency converter technology mounted directly on the compressor (option).


Trend-setting compressor variants

For current market trends e.g. alternative refrigerants, deep-freezing applications, Ex protection offers Bock a selection of interesting compressor variants from the established semi-hermetic range.

HA Compressors
Semi-hermetic air-cooled compressor for the deep-freeze temperature (R22/R404A)

CO2 Compressors (subcritical)
Semi-hermetic compressors for subcritical cascade systems



CO2 Compressors (transcritical)
Semi-hermetic compressors for transcritical CO2 applications

R410A Compressors
Semi-hermetic compressors for the refrigerant R410A



ATEX Compressors
Semi-hermetic compressors in explosion-risk environments

Aluminium Compressors
Semi-hermetic light weight compressors in aluminium design